void CResizableLayout::AddAnchor(HWND hWnd, CSize sizeTypeTL, CSize sizeTypeBR)
{
CWnd* pParent = GetResizableWnd();
// child window must be valid
ASSERT(::IsWindow(hWnd));
// must be child of parent window
// ASSERT(::IsChild(pParent->GetSafeHwnd(), hWnd));
// top-left anchor must be valid
ASSERT(sizeTypeTL != NOANCHOR);
// get control's window class
CString sClassName;
GetClassName(hWnd, sClassName.GetBufferSetLength(MAX_PATH), MAX_PATH);
sClassName.ReleaseBuffer();
// get parent window's rect
CRect rectParent;
GetTotalClientRect(&rectParent);
// and child control's rect
CRect rectChild;
::GetWindowRect(hWnd, &rectChild);
::MapWindowPoints(NULL, pParent->m_hWnd, (LPPOINT)&rectChild, 2);
// adjust position, if client area has been scrolled
rectChild.OffsetRect(-rectParent.TopLeft());
// go calculate margins
CSize sizeMarginTL, sizeMarginBR;
if (sizeTypeBR == NOANCHOR)
sizeTypeBR = sizeTypeTL;
// calculate margin for the top-left corner
sizeMarginTL.cx = rectChild.left - rectParent.Width() * sizeTypeTL.cx / 100;
sizeMarginTL.cy = rectChild.top - rectParent.Height() * sizeTypeTL.cy / 100;
// calculate margin for the bottom-right corner
sizeMarginBR.cx = rectChild.right - rectParent.Width() * sizeTypeBR.cx / 100;
sizeMarginBR.cy = rectChild.bottom - rectParent.Height() * sizeTypeBR.cy / 100;
// prepare the structure
LayoutInfo layout(hWnd, sizeTypeTL, sizeMarginTL,
sizeTypeBR, sizeMarginBR, sClassName);
// initialize resize properties (overridable)
InitResizeProperties(layout);
// must not be already there!
// (this is probably due to a duplicate call to AddAnchor)
POSITION pos;
ASSERT(!m_mapLayout.Lookup(hWnd, pos));
// add to the list and the map
pos = m_listLayout.AddTail(layout);
m_mapLayout.SetAt(hWnd, pos);
}
/*!
* This function adds a new control to the layout manager and sets anchor
* points for its top-left and bottom-right corners.
*
* @param hWnd Window handle to the control to be added
* @param anchorTopLeft Anchor point for the top-left corner
* @param anchorBottomRight Anchor point for the bottom-right corner
*
* @remarks Overlapping controls, like group boxes and the controls inside,
* must be added from the outer controls to the inner ones, to let
* the clipping routines work correctly.
*
* @sa AddAnchorCallback RemoveAnchor
*/
void CResizableLayout::AddAnchor(HWND hWnd, ANCHOR anchorTopLeft, ANCHOR anchorBottomRight)
{
CWnd* pParent = GetResizableWnd();
// child window must be valid
ASSERT(::IsWindow(hWnd));
// must be child of parent window
ASSERT(::IsChild(pParent->GetSafeHwnd(), hWnd));
// get parent window's rect
CRect rectParent;
GetTotalClientRect(&rectParent);
// and child control's rect
CRect rectChild;
::GetWindowRect(hWnd, &rectChild);
::MapWindowPoints(NULL, pParent->m_hWnd, (LPPOINT)&rectChild, 2);
// adjust position, if client area has been scrolled
rectChild.OffsetRect(-rectParent.TopLeft());
// go calculate margins
CSize marginTopLeft, marginBottomRight;
// calculate margin for the top-left corner
marginTopLeft.cx = rectChild.left - rectParent.Width() * anchorTopLeft.cx / 100;
marginTopLeft.cy = rectChild.top - rectParent.Height() * anchorTopLeft.cy / 100;
// calculate margin for the bottom-right corner
marginBottomRight.cx = rectChild.right - rectParent.Width() * anchorBottomRight.cx / 100;
marginBottomRight.cy = rectChild.bottom - rectParent.Height() * anchorBottomRight.cy / 100;
// prepare the structure
LAYOUTINFO layout(hWnd, anchorTopLeft, marginTopLeft,
anchorBottomRight, marginBottomRight);
// get control's window class
GetClassName(hWnd, layout.sWndClass, MAX_PATH);
// initialize resize properties (overridable)
InitResizeProperties(layout);
// must not be already there!
// (this is probably due to a duplicate call to AddAnchor)
POSITION pos;
ASSERT(!m_mapLayout.Lookup(hWnd, pos));
// add to the list and the map
pos = m_listLayout.AddTail(layout);
m_mapLayout.SetAt(hWnd, pos);
}